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Siemens SIMATIC S7-400H Redundant System Bundle

Name: Siemens 6ES7400-0HR50-4AB0
Brand: Siemens
SKU: 6ES7400-0HR50-4AB0
Availability: InStock

Siemens SIMATIC S7-400H redundant system bundle for high availability.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number6ES7400-0HR50-4AB0

System SIMATIC S7-400H

CPUs 2x CPU 412-3H

RAM per CPU 1 MB

Rack 1x UR2-H

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12-month warranty

All units tested

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Same-day dispatch

Order by 2pm CST

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

Redundant CPU architecture High availability for critical processes 2x 1MB CPU 412-3H controllers Dual redundant power supplies Integrated synchronization modules

Product description

The Siemens 6ES7400-0HR50-4AB0 is a SIMATIC S7-400H system bundle designed for high availability and redundancy. This bundle includes two CPU 412-3H controllers, each with 1 MB of RAM, for fail-safe operation. It also contains one UR2-H rack and two PS 405 10A power supplies (24/48/60 V DC). For synchronization between the redundant CPUs, it includes 4 sync modules and two 1-meter sync cables, supporting distances up to 10 meters. Additionally, four buffer batteries are provided for uninterruptible operation during power transfers.

This redundant system is crucial for processes where downtime is unacceptable, such as in power generation, water treatment, chemical plants, and critical manufacturing lines. The S7-400H system ensures continuous operation through its built-in redundancy, automatically switching to the standby CPU in case of a failure in the active unit.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 6ES7400-0HR50-4AB0. We understand the importance of reliability in critical applications and provide tested, high-quality surplus automation components. Equip your facility with the dependable redundancy of the S7-400H from Stanlo Automation.

Technical specifications

System	SIMATIC S7-400H
CPUs	2x CPU 412-3H
RAM per CPU	1 MB
Rack	1x UR2-H
Power Supplies	2x PS 405 10A (24/48/60 V DC)
Sync Modules	4x
Sync Cable	2x 1m (up to 10m distance)
Batteries	4x Buffer Batteries

Common applications

Power Generation

Water Treatment

Chemical Plants

Oil & Gas

Critical Manufacturing

Emergency Systems

Compatible systems

Siemens SIMATIC S7-400 series PROFIBUS DP Industrial Ethernet (with appropriate communication modules)

Also known as

Siemens S7-400H, Redundant Automation System, High Availability PLC, 6ES7400

Replaces / compatible with

This system bundle is designed for critical applications requiring high availability and fault tolerance. It replaces or upgrades standard PLC systems where continuous operation is paramount.

Technical note

Expert tip

The included synchronization modules and cables are essential for maintaining the state consistency between the two CPUs in the H system.

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Frequently asked questions

What is the primary advantage of the Siemens 6ES7400-0HR50-4AB0 S7-400H system bundle?

The primary advantage of the Siemens 6ES7400-0HR50-4AB0 S7-400H system bundle is its high availability due to redundant components, ensuring continuous operation even if one part fails.